rear wheels

Wheels, Tyres, Suspension, Chassis, Issues and Fixes
vanduara37
Posts: 95
Joined: Mon Jul 29, 2019 9:00 pm

Post by vanduara37 »

Can anyone explain the reason why the rear wheels are broader than the front wheels ?

User avatar
Nuclear Nick
Posts: 3814
Joined: Wed Feb 17, 2016 3:42 pm
Location: Bristol

Post by Nuclear Nick »

It's part of Porsche's DNA and is based on racing chassis dynamics. Wider tyres at the rear give greater traction as well as better handling and cornering ability. It's one of the reasons the Macan is the best handling SUV on the planet.
Nick

Defender 90 V8

991.2 C2 GTS

Macan Turbo - sold

BMW K1300S, BMW R1250 GSA
User avatar
putt4par
Posts: 252
Joined: Mon Sep 17, 2018 1:37 pm

Post by putt4par »

Also need to fill those lovely rear arches, always worked for porsche so why change?
vanduara37
Posts: 95
Joined: Mon Jul 29, 2019 9:00 pm

Post by vanduara37 »

Thank you.
The reason I,m asking is our macan had 18" original wheels which I think are too small for the car so I have fitted a set of Audi SQ5 20" wheels which are not staggered, wheels look great on the car but the offset is different. Front wheels are fine but the rears don,t fill the arches as good as original wheels. My question is would spacers be suitable or a broader tyre to fill the arch ?
On the plus side as the rear wheels don,t extend out into the arch as much it makes a huge difference to the amount of dirt sprayed on to the rear of the car.
On-Track
Posts: 2135
Joined: Sun May 03, 2015 12:59 pm
Location: Staffordshire

Post by On-Track »

A word of warning: there might be insurance/warranty implications resulting from fitting non-standard wheels.
Peter

Current: 2020 Carmine Red GTS http://www.porsche-code.com/PMST9ZI9
Gone- 2015 Sapphire Blue Diesel
Gone -2013 Cayenne Diesel
User avatar
SAC1
Posts: 3784
Joined: Wed May 24, 2017 8:24 pm
Location: near BATH

Post by SAC1 »

No!
Last edited by SAC1 on Sun Jun 28, 2020 5:06 pm, edited 1 time in total.
Steve

2020 GTS in Sapphire Blue
(sold) 2017 SD in Rhodium Silver
User avatar
SAC1
Posts: 3784
Joined: Wed May 24, 2017 8:24 pm
Location: near BATH

Post by SAC1 »

Macan has wider rims and tyres on the rear for handling balance and safety. Insurance and if you have an official Porsche warranty you have just invalidated those too. :cry:
Steve

2020 GTS in Sapphire Blue
(sold) 2017 SD in Rhodium Silver
vanduara37
Posts: 95
Joined: Mon Jul 29, 2019 9:00 pm

Post by vanduara37 »

Not too worried about opc warranty, I put original wheels back on whenever it has to go to Porsche centre. Have informed insurance about change of wheels and paid a supplement.
Side on I think the car looks great but from the back it looks weird as the wheels don,t fill out the arches that's why I was asking about spacers ?
User avatar
putt4par
Posts: 252
Joined: Mon Sep 17, 2018 1:37 pm

Post by putt4par »

Please check that the offset and ET are the same, otherwise you are changing the suspension geometry maybe to the detriment, obviously PCD is the same but other crucial elements remain.
User avatar
pmg
Posts: 2985
Joined: Wed Jun 20, 2018 7:31 pm

Post by pmg »

I think I would say if you want a car that drives like an Audi buy an Audi in the 1st place rather than pay for a Porsche and then turn it into an Audi and in addition risking insurance etc. it would also be a modification you would have to tell Ins Co about.
2019 Macan S Porsche code PKW8WKI8
Post Reply

  • Similar Topics
    Replies
    Views
    Last post